class_docstr: Show lines with a given gid.
code: def enable(self, *args):
      self.set_lines_visibility(True)
  
file_path: matplotlib/galleries/examples/user_interfaces/toolmanager_sgskip.py
imports: import matplotlib.pyplot
  from matplotlib.backend_tools import ToolBase, ToolToggleBase
label_desc: Use image node_id 2 for calling the GroupHideTool obj's underlying member method code with example usage: obj.enable() without return types